Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\Event\RequestEvent" not found in /srv/www/sites/public/starter-projects/vendor/symfony/http-kernel/Event/ExceptionEvent.php:30 Stack trace: #0 {main} thrown in /srv/www/sites/public/starter-projects/vendor/symfony/http-kernel/Event/ExceptionEvent.php on line 30